Desertification is caused by  A. human activity
B. leaching of the soil
C. solar heating patterns
D. temperature variations

How does friction with the atmosphere affect the speed of an artificial satellite

Asap. this question is 100 points if you answer it question: describe the basic relationship between ocean depth and temperature seen in the graph

Cattle with brown fur and cattle with white fur will produce a reddish roan calf . when examined closely, the calf show about an even number of brown hairs and white hairs that give a reddish appearance when viewed from far away. the fact that both the brown fur allele and the white fur allele are expressed equally in the offspring is an example of